Elastomeric shaft coupling for concentric shafts

US4861313A · kind A · utility

Assignee

• Sundstrand Corporation · US

Inventors

• Philip R. Zeiser · Rockford, US
• John Readman · Rockford, US

Key dates

• Filing date: Jul 9, 1987
• Grant date: Aug 29, 1989
• Expiry date: Jul 9, 2007

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16D3/76
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A dual concentric shaft coupling arrangement is provided with both inner and outer rotatable assemblies. An inner assembly comprises an inner rotatable driving member, an inner rotatable driven member and an inner rotatable intermediate member that is connected therebetween. An outer assembly comprises an outer rotatable driving member, an outer rotatable driven member and an outer rotatable intermediate member connected therebetween. Both the inner and outer rotatable intermediate members comprise first and second rigid portions which are connectable to the associated driving and driven members, respectively. Between the first and second rigid portions, a compliant portion is connected for the purpose of transmitting torque between the first and second rigid portions and, consequently, between the driving and driven members. Spline arrangements are also provided in a non-contact association with each other at low magnitudes of torque. At torque levels above a predetermined magnitude, the compliant portion permits deformation and relative rotation between the driving and driven members which moves the spline members into torque transmitting contact with each other. The radial align…